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Newbie
takrluvr
Posts: 4
Registered: ‎05-04-2009
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What is the difference between microsd and microsdhd?

What, exactly, is the difference between a microsd card and a microsdhd card?  Is a microsdhd card compatible with a microsd device?
SanDisk Guru
Marvin_Martian
Posts: 4,882
Registered: ‎11-17-2008
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Re: What is the difference between microsd and microsdhd?

It's microsd and microsdhc...and the difference is the microsdhc cards have more capacity. :smileyhappy:
Clip Zip 4GB, iPod Nano 2G 4GB, iPod 5.5G 80GB <--All Rockboxed. Clip Sport 8GB, Cowon D2+ 20GB
iPod Touch 5G 32GB, iPod Touch 4G 32GB, iPod Touch 2G 8GB
Nexus 7 32GB(4.4.2 KitKat) Asus MeMo Pad 8 16+64GB, LG Optimus G Pro32GB+16GB(4.1.2 JB).
SanDisk Senior User
jkj1962
Posts: 124
Registered: ‎10-30-2008
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Re: What is the difference between microsd and microsdhd?

[ Edited ]

takrluvr wrote:
What, exactly, is the difference between a microsd card and a microsdhd card?  Is a microsdhd card compatible with a microsd device?

 

MicroSD cards can only hold up to 2GB.  MicroSDHC (HC means "High Capacity" ) range from 4GB to 16GB currently, with the possibility of 32GB.  A microSDHC card uses a different protocol to transfer the data, so a device built for microSD cards may or may not read it; it depends on the device.  The hardware controller is different, but some newer devices can be updated to newer firmware to read them.  Again, it all depends on the device.

 

Wikipedia has a page on SD cards in general that has a section on the SDHC types:  http://en.wikipedia.org/wiki/MicroSDHC#SDHC

Message Edited by jkj1962 on 05-06-2009 05:29 PM